Gaya APA
Hardiyatmo, H, C. (2010).
MEKANIKA TANAH 1 / EDISI KELIMA (Edisi 5 Jilid 1).
Yogyakarta:
Gajah Mada University press.
Gaya MLA
Hardiyatmo, Hary, Christady.
"MEKANIKA TANAH 1 / EDISI KELIMA".
Edisi 5 Jilid 1
Yogyakarta:
Gajah Mada University press,
2010.
Text.